In the food industry, round bottles with hinged closures are often used to package sauces, dressings and syrups. Cosmetics companies use them to pour or package liquids such as lotions, shampoos and shower gels. Flip-top bottles are also widely used in laboratories, pharmacies and the pharmaceutical and chemical industries. In the food industry, round bottles with hinged closures are often used to package sauces, dressings and syrups. Cosmetics companies use them to pour or package liquids such as lotions, shampoos and shower gels. Flip-top bottles are also widely used in laboratories, pharmacies and the pharmaceutical and chemical industries.